CheckBox标签和属性

CheckBox的作用：可以提供复选

下面是我点击按钮查看所选内容的代码：定义按钮监听器，并在onClick方法中调用shoeAlt方法（此方法会在第二块代码定义）

 Button btn=(Button) findViewById(R.id.btn);

         btn.setOnClickListener(new View.OnClickListener() {

             @Override
             public void onClick(View v) {
                 showAlt();

             }
         });

接下来是定义showAlt方法（首先初始化控件，然后用isCheck方法查看，这些控件哪些被选中，如果被选中就用getText和toString方法得到控件的text）

到这里不得不说Toast

Toast给当前视图显示一个浮动的显示块，它永远不会获得焦点，我会在下一篇的博客中详细解释Toast

 protected CheckBox run, sleep, swim, eat, playball;

     protected void showAlt() {
         run = (CheckBox) findViewById(R.id.run);
         sleep = (CheckBox) findViewById(R.id.sleep);
         swim = (CheckBox) findViewById(R.id.swim);
         eat = (CheckBox) findViewById(R.id.eat);
         playball = (CheckBox) findViewById(R.id.playball);
         StringBuffer str = new StringBuffer();
         if (run.isChecked()) {
             str.append(run.getText().toString() + ",");
         }
         if (sleep.isChecked()) {
             str.append(sleep.getText().toString() + ",");
         }
         if (swim.isChecked()) {
             str.append(swim.getText().toString() + ",");
         }
         if (eat.isChecked()) {
             str.append(eat.getText().toString() + ",");
         }
         if (playball.isChecked()) {
             str.append(playball.getText().toString() + ",");
         }
         if (str.length() == 0) {
             Toast.makeText(this, "请选择您的爱好", 1).show();
         } else {
             String str1 = str.substring(0, str.length() - 1);
             Toast.makeText(this, "你的爱好是：" + str1, 1).show();
         }

     }